| Number of subsequent same site primary cancers‡ | ||
---|---|---|---|
 | Registry | IARC/IACR rules | SEER rules |
First primary cancer | n | n | n |
Lung (C33-34) | 24 | 8 | 17 |
Colorectal (C18-20) | 56 | 31 | 55 |
Female Breast (C50) | 98 | 1 | 79 |
Prostate (C61) | 3 | 0 | 0 |
Head & neck (C00-C14, C30-C32) | 32 | 24 | 29 |
Stomach (C16) | 3 | 0 | 1 |
Bladder (C67) | 1 | 0 | 1 |
Oesophagus (C15) | 1 | 0 | 0 |
Melanoma (C43) | 28 | 0 | 28 |
Pancreas (C25) | 1 | 0 | 0 |
Ovarian (C56) | 1 | 0 | 1 |
Kidney (C64) | 3 | 0 | 2 |
Corpus uteri (C54) | 1 | 0 | 1 |